348 Fault tracing
Warning messages
Note: The list also contains events that only appear in the Event log.
Code
(hex)
Warning / Aux. code Cause What to do
64FF Fault reset A fault has been reset from the
panel, Drive composer PC tool,
fieldbus or I/O.
Event. Informative only.
A2A1 Current calibration Current offset and gain
measurement calibration will
occur at next start.
Informative warning. (See parameter
99.13 ID run requested.)
A2B1 Overcurrent Output current has exceeded
internal fault limit.
In addition to an actual
overcurrent situation, this
warning may also be caused
by an earth fault or supply
phase loss.
Check motor load.
Check acceleration times in parameter
group 23 Speed reference ramp (speed
control), 26 Torque reference chain
(torque control) or 28 Frequency
reference chain (frequency control). Also
check parameters 46.01 Speed scaling,
46.02 Frequency scaling and 46.03
Torque scaling.
Check motor and motor cable (including
phasing and delta/star connection).
Check for an earth fault in motor or motor
cables by measuring the insulation
resistances of motor and motor cable.
See chapter Electrical installation,
section Checking the insulation of the
assembly in the hardware manual of the
drive.
Check there are no contactors opening
and closing in motor cable.
Check that the start-up data in parameter
group 99 Motor data corresponds to the
motor rating plate.
Check that there are no power factor
correction capacitors or surge absorbers
in motor cable.
A2B3 Earth leakage Drive has detected load
unbalance typically due to
earth fault in motor or motor
cable.
Check there are no power factor
correction capacitors or surge absorbers
in motor cable.
Check for an earth fault in motor or motor
cables by measuring the insulation
resistances of motor and motor cable.
See chapter Electrical installation,
section Checking the insulation of the
assembly in the hardware manual of the
drive. If an earth fault is found, fix or
change the motor cable and/or motor.
If no earth fault can be detected, contact
your local ABB representative.
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